Evidence map›Paper›PMID 22003198›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2011

Programmed cell death 1 suppresses B-1b cell expansion and long-lived IgG production in response to T cell-independent type 2 antigens.

Karen M Haas

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 59 citations in OpenAlex.

  1. Antibody-mediated thyroid dysfunction during T-cell checkpoint blockade in patients with non-small-cell lung cancer.Annals of oncology : official journal of the European Society for Medical Oncology · 2017
    Trial
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  8. Noncanonical B Cells: Characteristics of Uncharacteristic B Cells.Journal of immunology (Baltimore, Md. : 1950) · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. B Cell Subsets Differentially Contribute to the T Cell-Independent Memory Pool.Journal of immunology (Baltimore, Md. : 1950) · 2020
    Article
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  17. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

1 author at 1 institution in 1 country.

Karen M HaasDepartment of Microbiology and Immunology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. kmhaas@wfubmc.edu
Wake Forest University · US

Funding

REGULATION OF PROTECTIVE HUMORAL IMMUNITY TO STREPTOCOCCUS PNEUMONIAE BY PD-1R21AI095800 · NIAID · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HAAS, KAREN M · 2011 to 2012
$407k
NIAID NIH HHS R21 AI095800NIAID NIH HHS R21AI095800-01
6 · The paper itself

Abstract

B-1b cells play a key role in producing Abs against T cell-independent type 2 Ags. However, the factors regulating Ab production by this unique B cell subset are not well understood. In this study, a detailed analysis of the B cell response to 2,4,6-trinitrophenol (TNP)-Ficoll was performed using normal mice. TNP-Ficoll delivered i.p. or i.v. induced rapid Ag-specific B-1b cell activation, expansion, isotype switching, and plasmablast/plasma cell differentiation. Ag-specific B-1b cell numbers peaked at day 5 and then gradually declined in the spleen but remained elevated in the peritoneal cavity beyond 40 d postimmunization. In addition to expressing CD43, CD44, and CD86, Ag-activated B-1b cells transiently expressed programmed cell death 1 (PD-1), which functionally suppressed BCR-induced B-1b cell in vitro proliferation when additional costimulatory signals were lacking. Inhibiting PD-1:PD-1 ligand interactions during TNP-Ficoll immunization significantly enhanced Ag-specific B-1b cell expansion and the frequency of IgG isotype switching and plasmablast/plasma cell differentiation. Remarkably, PD-1 mAb blockade during the first week following immunization resulted in significantly increased numbers of both splenic and bone marrow Ag-specific IgG3-secreting cells, but not IgM-secreting cells, at both early (day 5) and late (week 6) time points. Moreover, Ag-specific serum IgG3 levels, as well as IgG2c, IgG2b, and IgA levels, remained significantly elevated in PD-1 mAb-treated mice relative to control Ab-treated mice for ≥6 wk postimmunization. Thus, PD-1:PD-1 ligand interactions occurring shortly after initial T cell-independent type 2 Ag encounter play a critical role in suppressing Ag-specific B-1b cell expansion and the development of long-term IgG-producing bone marrow and spleen cells.

Indexed as

AnimalsAntigens, T-IndependentB-Lymphocyte SubsetsCell DifferentiationCells, CulturedDown-RegulationFicollGrowth InhibitorsHaptensImmunoglobulin GMiceMice, Inbred C57BLMice, KnockoutProgrammed Cell Death 1 ReceptorTime FactorsTrinitrobenzenesAntigens, T-IndependentFicollGrowth InhibitorsHaptensImmunoglobulin GPdcd1 protein, mouseProgrammed Cell Death 1 ReceptorTNP-ficollTrinitrobenzenes

Identifiers

PMID22003198
PMCPMC3213689
OpenAlexW2134775640

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.